A handy one-page cheatsheet for using HTML5’s appcache manifest file for offline storage.
A bookmarklet to help you figure out what files you might want to put in your cache manifest for offline storage.
John has written a very in-depth look at offline storage (using the cache manifest) in HTML5.
A handy little tool to help you get started with building offline apps by suggesting which files should go in your cache manifest.
A nice collection of free apps for your mobile device. No app store required, thanks to offline storage.
A great portable jQuery reference. No app store required — this uses offline storage.